# N4246Z: 2009 Robinson Helicopter R44 II, registration cancelled 2020-06-05

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: June 5, 2020
- Exported to: Costa Rica
- Status when cancelled: Valid registration
- Airframe: [Robinson Helicopter R44 II](https://openairdocs.org/model/robinson-helicopter-r44-ii) (registry code 7640122)
- Engine: [Lycoming IO-540-AE1A5](https://openairdocs.org/engine/lycoming-io-540-ae1a5) (registry code 41899)
- Data sheets: [TCDS H11NM](https://openairdocs.org/tcds/H11NM), [TCDS 1E4](https://openairdocs.org/tcds/1E4) (OpenAirDocs)
- Serial number: 12697
- Year built: 2009
- Type of aircraft: Rotorcraft
- Engine type: Reciprocating
- Airworthiness: Standard, normal
- Airworthiness date: February 18, 2009
- Last registry action: March 30, 2020
- Mode S code: A50DBD
- Owner when cancelled: [Bas Part Sales LLC](https://openairdocs.org/faa-owner/BAS%20PART%20SALES%20LLC)
- Location: [Greeley, CO](https://openairdocs.org/faa-place/CO/Greeley)
- Owner type: LLC
- Owner's area on the map: 40.4447° N, 104.6794° W: Placed by OpenAirDocs at the center of ZIP code 80631, within about 6 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N4246Z
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4246Z
- Page: https://openairdocs.org/deregistered/N4246Z-2020-06-05

From the FAA registry file of November 4, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the Robinson Helicopter R44 II: https://openairdocs.org/model/robinson-helicopter-r44-ii.md

## NTSB investigations (2)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB GAA19CA110](https://openairdocs.org/ntsb/GAA19CA110), Jan 3, 2019: Robinson R44 (N4246Z), Grace, ID, substantial damage. Probable cause: The pilot's failure to maintain clearance from the power lines.
- [NTSB WPR14LA353](https://openairdocs.org/ntsb/WPR14LA353), Aug 24, 2014: Robinson Helicopter R44 II (N4246Z), Pahrump, NV, substantial damage. Probable cause: A total loss of engine power during a practice autorotation for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that…

## FAA accident and incident reports (2)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Accident 20190103000089A](https://openairdocs.org/incident/20190103000089A), Jan 3, 2019: Robinson Helicopter Company R44 II (N4246Z), Grace, ID, Substantial damage. While manuvering the aircraft down a coyote trail approximately 30 feet off the ground on pilots property, the pilot struck a quarter inch power line with the…
- [Accident 20140824013789A](https://openairdocs.org/incident/20140824013789A), Aug 24, 2014: Robinson Helicopter Company R44 II (N4246Z), Pahrump, NV, Substantial damage. While on a personal flight and operating under part 91, the pilot, who was the sole occupant, entered a power-on practice autorotation. The power was reduced…

## Other aircraft with N4246Z

- [Cancelled (date not recorded)](https://openairdocs.org/deregistered/N4246Z-undated): Cessna 441, S/N 4410102

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.